imaginary number

• Número que al elevarse al cuadrado da un resultado negativo, generalmente expresado como un número real multiplicado por la unidad imaginaria i, usado en matemáticas para extender los números reales al plano complejo.

A mathematical term for a number that, when squared, gives a negative result, typically expressed as a real number multiplied by the imaginary unit i.

1. Complex number with imaginary unitC1formal

   A number that can be written as a real number multiplied by the imaginary unit i, where i is defined as the square root of -1.

   número imaginario

   • The square root of -9 is an imaginary number, 3i.
   • Imaginary numbers are used in electrical engineering to analyze AC circuits.
   • When you add a real number and an imaginary number, you get a complex number.